same one :)

Hey Folks Many of you asked for it, and we did our best to open up some extra tickets... 📅SAVE THE DATE: Wednesday, October 21 at 2 PM UTC+2, the second batch of ticket sales! There will once again be a few tickets available, don’t miss your chance, this will be the last one!

We're getting the shirts ready for everyone who will be there the 13th of November! 👻👕👾 We also have other special goodies when you arrive... 👀

Hey folks, Once again, we are impressed and admire your huge loyalty to the conference... we are now SOLD OUT 💚 We will try to find a few extra tickets for latecomers, we can't promise anything, but you will have a second chance 🍀 See you soon! 🏔️

important note if you're hesitating on getting a ticket for Grehack: If you want a T-shirt, you have until tomorrow evening (Oct 8) to get your ticket, then you won't be able to have merch. get it now on pretix.eu/GreHack/GreHack-20…!

It's still time to get tickets for Grehack, November 13-14, now while supply lasts! pretix.eu/GreHack/GreHack-20…

tickets for Grehack opens in 15 minutes. Get ready to speedrun to the shop! pretix.eu/GreHack/GreHack-20…

Without competition, we hope the urge to use AI assistance will lessen, and the team will be able to give you some hints on the challs you're blocking on!

This year a change about the CtF: As AI tools start to transform CtF leaderboards to a prompt an tokens competition, we decided to bring back the spirit of learning , sharing and having fun by simply removing the leaderboard.

Hey folks, Brace yourself as tickets for GreHack 2026 will be available This tuesday, Sep 29 at 10 a.m. UTC+2! You can buy your tickets for the conference and CTF and reserve your workshop 🎟️ Workshops will be announced this weekend. See you tuesday for the ticket sale!

CFP IS STILL OPEN FOR TALKS ! GreHack 2026 is coming soon... 🫣We invite you to share your talk about a cybersecurity topic of your choice ! 😁 Go now at GreHack.fr to send your talk before it's too late !👀Ending at the 13th.⌚ Thanks to everyone ! Cheers ! 🍻

details & submission at: grehack.fr/cfp/

Reminder: Grehack CfP is live! 📜 While we have the excuse of the summer heat to stay fresh in front of our computer, take the opportunity to refine your talk or workshop for #GreHack26. If you want to show your fresh new research or chill findings November 13-14 in Grenoble:

Details & submission at: cfp.grehack.fr/grehack-2026/…

Grehack CFP open! 📜 #GreHack is coming back November 13-14 in Grenoble, now's your time to propose a talk or workshop about your new research, the cool tool you created, surprising vulns findings and your insightful cybersec experience! Call for Paper is open starting... Now!

🎤 Final #GreHack25 Rumps recap 🙌 • Argit Janaqi “How Private Is VeraCrypt Activity (On Windows)” youtube.com/watch?v=O9CNRLBb… • Lucas Parsy (Tuxlu) “Grenoble Hackerspace” youtube.com/watch?v=Hfl3qU5J… • @Ruulian_ “How I Seduced My Girlfriend Using The FCSC” youtube.com/watch?v=8N03vFVP…

🎤 First #GreHack25 Rumps recap ! • @biero_el “Setup And Tune An OT SOC” 🎥 youtube.com/watch?v=g0jbECO2… • @biero_el “Reading Serbian In JS At 3am” 🎥 youtube.com/watch?v=AzDHxVTs… • @klcium “I DT_NEEDED Help! How Not To Inject A Dependency” 🎥 youtube.com/watch?v=TkicF9Bs…

🎤 @nflatrea "So you want to start RadioHacking?” Perfect way to wrap up #GreHack25, a fun intro to getting started with radio hacking 🙌 🎥Thanks again @Ministraitor ! youtube.com/watch?v=4c-cTBLz…

🎤 @b1two_ (@Synacktiv) "Sharker: where Wireshark ends, we begin" A hands-on look at handling large PCAPs during red team assessments, with a tool to extract key artifacts. Huge thanks for this great talk! 🙌 🎥 Big thanks to @Ministraitor for the video ! youtube.com/watch?v=GutuFxrU…